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icp_ioctl.c revision 1.2
      1 /*	$NetBSD: icp_ioctl.c,v 1.2 2003/05/18 06:18:25 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe of Wasabi Systems, Inc.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  *       Copyright (c) 2000-01 Intel Corporation
     41  *       All Rights Reserved
     42  *
     43  * Redistribution and use in source and binary forms, with or without
     44  * modification, are permitted provided that the following conditions
     45  * are met:
     46  * 1. Redistributions of source code must retain the above copyright
     47  *    notice, this list of conditions, and the following disclaimer,
     48  *    without modification, immediately at the beginning of the file.
     49  * 2. Redistributions in binary form must reproduce the above copyright
     50  *    notice, this list of conditions and the following disclaimer in the
     51  *    documentation and/or other materials provided with the distribution.
     52  * 3. The name of the author may not be used to endorse or promote products
     53  *    derived from this software without specific prior written permission.
     54  *
     55  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     56  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     57  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     58  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     59  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     60  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     61  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     62  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     63  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     64  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     65  * SUCH DAMAGE.
     66  */
     67 
     68 /*
     69  * icp_ioctl.c: Ioctl interface for the ICP-Vortex management tools.
     70  *
     71  * Based on ICP's FreeBSD "iir" driver ioctl interface, written by
     72  * Achim Leubner <achim.leubner (at) intel.com>.
     73  *
     74  * This is intended to be ABI-compatile with the ioctl interface for
     75  * other OSs.
     76  */
     77 
     78 #include <sys/cdefs.h>
     79 __KERNEL_RCSID(0, "$NetBSD: icp_ioctl.c,v 1.2 2003/05/18 06:18:25 thorpej Exp $");
     80 
     81 #include <sys/param.h>
     82 #include <sys/systm.h>
     83 #include <sys/kernel.h>
     84 #include <sys/device.h>
     85 #include <sys/proc.h>
     86 #include <sys/conf.h>
     87 #include <sys/ioctl.h>
     88 
     89 #include <machine/bus.h>
     90 
     91 #include <dev/ic/icpreg.h>
     92 #include <dev/ic/icpvar.h>
     93 
     94 /* These are simply the same as ICP's "iir" driver for FreeBSD. */
     95 #define	ICP_DRIVER_VERSION		1
     96 #define	ICP_DRIVER_SUBVERSION		3
     97 
     98 static dev_type_open(icpopen);
     99 static dev_type_ioctl(icpioctl);
    100 
    101 const struct cdevsw icp_cdevsw = {
    102 	icpopen, nullclose, noread, nowrite, icpioctl,
    103 	nostop, notty, nopoll, nommap, nokqfilter,
    104 };
    105 
    106 extern struct cfdriver icp_cd;
    107 
    108 static int
    109 icpopen(dev_t dev, int flag, int mode, struct proc *p)
    110 {
    111 
    112 	if (securelevel > 1)
    113 		return (EPERM);
    114 	if (device_lookup(&icp_cd, minor(dev)) == NULL)
    115 		return (ENXIO);
    116 
    117 	return (0);
    118 }
    119 
    120 static int
    121 icpioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
    122 {
    123 	int error = 0;
    124 
    125 	switch (cmd) {
    126 	case GDT_IOCTL_GENERAL:
    127 	    {
    128 		struct icp_softc *icp;
    129 		gdt_ucmd_t *ucmd = (void *) data;
    130 
    131 		icp = device_lookup(&icp_cd, ucmd->io_node);
    132 		if (icp == NULL)
    133 			return (ENXIO);
    134 
    135 		error = icp_ucmd(icp, ucmd);
    136 		break;
    137 	    }
    138 
    139 	case GDT_IOCTL_DRVERS:
    140 		*(int *) data =
    141 		    (ICP_DRIVER_VERSION << 8) | ICP_DRIVER_SUBVERSION;
    142 		break;
    143 
    144 	case GDT_IOCTL_CTRTYPE:
    145 	    {
    146 		struct icp_softc *icp;
    147 		gdt_ctrt_t *p = (void *) data;
    148 
    149 		icp = device_lookup(&icp_cd, p->io_node);
    150 		if (icp == NULL)
    151 			return (ENXIO);
    152 
    153 		/* XXX magic numbers */
    154 		p->oem_id = 0x8000;
    155 		p->type = 0xfd;
    156 		p->info = (icp->icp_pci_bus << 8) | (icp->icp_pci_device << 3);
    157 		p->ext_type = 0x6000 | icp->icp_pci_subdevice_id;
    158 		p->device_id = icp->icp_pci_device_id;
    159 		p->sub_device_id = icp->icp_pci_subdevice_id;
    160 		break;
    161 	    }
    162 
    163 	case GDT_IOCTL_OSVERS:
    164 	    {
    165 		gdt_osv_t *p = (void *) data;
    166 
    167 		p->oscode = 12;
    168 
    169 		/*
    170 		 * __NetBSD_Version__ is encoded thusly:
    171 		 *
    172 		 *	MMmmrrpp00
    173 		 *
    174 		 * M = major version
    175 		 * m = minor version
    176 		 * r = release ["",A-Z[A-Z] but numeric]
    177 		 * p = patchlevel
    178 		 *
    179 		 * Since the ABI is not supposed to change between
    180 		 * patchlevels of the same major/minor version, we
    181 		 * will encode major/minor/release into the returned
    182 		 * data.
    183 		 */
    184 
    185 		p->version = __NetBSD_Version__ / 100000000;
    186 		p->subversion = (__NetBSD_Version__ / 1000000) % 100;
    187 		p->revision = (__NetBSD_Version__ / 10000) % 100;
    188 
    189 		strcpy(p->name, ostype);
    190 		break;
    191 	    }
    192 
    193 	case GDT_IOCTL_CTRCNT:
    194 		*(int *) data = icp_count;
    195 		break;
    196 
    197 	case GDT_IOCTL_EVENT:
    198 	    {
    199 		struct icp_softc *icp;
    200 		gdt_event_t *p = (void *) data;
    201 		gdt_evt_str *e = &p->dvr;
    202 		int s;
    203 
    204 		icp = device_lookup(&icp_cd, minor(dev));
    205 
    206 		switch (p->erase) {
    207 		case 0xff:
    208 			switch (p->dvr.event_source) {
    209 			case GDT_ES_TEST:
    210 				e->event_data.size =
    211 				    sizeof(e->event_data.eu.test);
    212 				break;
    213 
    214 			case GDT_ES_DRIVER:
    215 				e->event_data.size =
    216 				    sizeof(e->event_data.eu.driver);
    217 				break;
    218 
    219 			case GDT_ES_SYNC:
    220 				e->event_data.size =
    221 				    sizeof(e->event_data.eu.sync);
    222 				break;
    223 
    224 			default:
    225 				e->event_data.size =
    226 				    sizeof(e->event_data.eu.async);
    227 				break;
    228 			}
    229 			s = splbio();
    230 			icp_store_event(icp, e->event_source, e->event_idx,
    231 			    &e->event_data);
    232 			splx(s);
    233 			break;
    234 
    235 		case 0xfe:
    236 			s = splbio();
    237 			icp_clear_events(icp);
    238 			splx(s);
    239 			break;
    240 
    241 		case 0:
    242 			p->handle = icp_read_event(icp, p->handle, e);
    243 			break;
    244 
    245 		default:
    246 			icp_readapp_event(icp, (u_int8_t) p->erase, e);
    247 			break;
    248 		}
    249 		break;
    250 	    }
    251 
    252 	case GDT_IOCTL_STATIST:
    253 		memcpy(&icp_stats, data, sizeof(gdt_statist_t));
    254 		break;
    255 
    256 	default:
    257 		return (ENOTTY);
    258 	}
    259 
    260 	return (error);
    261 }
    262